Figure out a board where Transmute/Bonfire is the way to go and you are done - some sort of filtering card and a bunch of cards that don't draw much or attack like Transmute, Crossroads, Village, Walled Village, Farming Village, Border Village, Port, Shanty Town, Native Village, Mining Village, Bonfire should do it.
Open Potion/Bonfire. Get a Transmute the first time you hit less than 3 with the Potion in hand. Bonfire with 3 to get rid of all of the Copper and turn all of the Estates into Gold before trashing the Transmute to Bonfire. Once you have done so, buy Province, Duchy, or Crossroads until the game ends.
I don't know if you call Transmute good here but it is one of the key cards to the best strategy.
Here is 5 Provinces in 14 turns on a pretty normal run:
Turn 1 - tracer
t plays 3 Coppers
t buys a Bonfire
t trashes 2 Coppers
t draws 4 Coppers and an Estate
Turn 2 - tracer
t plays 4 Coppers
t buys and gains a Potion
t shuffles their deck.
t draws 3 Coppers and 2 Estates
Turn 3 - tracer
t plays 3 Coppers
t buys a Bonfire
t trashes 2 Coppers
t shuffles their deck.
t draws 2 Coppers, 2 Estates and a Potion
Turn 4 - tracer
t plays a Potion
t buys and gains a Transmute
t shuffles their deck.
t draws 3 Coppers and 2 Estates
Turn 5 - tracer
t plays 3 Coppers
t buys a Bonfire
t trashes 2 Coppers
t shuffles their deck.
t draws 3 Estates, a Potion and a Transmute
Turn 6 - tracer
t plays a Transmute
t trashes an Estate
t gains a Gold
t shuffles their deck.
t draws a Copper, a Gold, an Estate, a Potion and a Transmute
Turn 7 - tracer
t plays a Transmute
t trashes an Estate
t gains a Gold
t plays a Potion, a Copper and a Gold
t buys a Bonfire
t trashes a Copper and a Potion
t shuffles their deck.
t draws 2 Golds, an Estate and a Transmute
Turn 8 - tracer
t plays a Transmute
t trashes an Estate
t gains a Gold
t plays a Gold
t buys a Bonfire
t trashes a Transmute
t shuffles their deck.
t draws 3 Golds
Turn 9 - tracer
t plays 3 Golds
t buys and gains a Province
t shuffles their deck.
t draws 3 Golds and a Province
Turn 10 - tracer
t plays 3 Golds
t buys and gains a Province
t shuffles their deck.
t draws 3 Golds and 2 Provinces
Turn 11 - tracer
t plays 3 Golds
t buys and gains a Province
t shuffles their deck.
t draws 2 Golds and 3 Provinces
Turn 12 - tracer
t plays a Gold
t buys and gains a Crossroads
t shuffles their deck.
t draws 3 Golds and 2 Provinces
Turn 13 - tracer
t plays 3 Golds
t buys and gains a Province
t shuffles their deck.
t draws 2 Golds, 2 Provinces and a Crossroads
Turn 14 - tracer
t plays a Crossroads
t reveals 2 Golds and 2 Provinces
t draws a Gold and a Province
t plays 3 Golds
t buys and gains a Province
t shuffles their deck.
t draws 2 Golds, 2 Provinces and a Crossroads